doxo enables secure bill payment on your behalf and is not an affiliate of or endorsed by First Interstate Bank. Pay with your Visa, MasterCard, or Discover credit card or debit card, with Apple Pay, or with your bank account.

Pay Your Bills Securely with doxo

  • State-of-the-art security
  • Free mobile app available on Google Play & Apple App Store
  • Never miss a due date with reminders and scheduled payments
  • Real-time tracking and bill history
  • Pay thousands of billers directly from your phone

doxo is a secure all-in-one service to organize all your provider accounts in a single app, enabling reliable payment delivery to thousands of billers. doxo is not an affiliate of First Interstate Bank. Logos and other trademarks within this site are the property of their respective owners. No endorsement has been given nor is implied. Payments are free with a linked bank account. Other payments may have a fee, which will be clearly displayed before checkout. Learn about doxo and how we protect users' payments.

Contacting First Interstate Bank

Options for reaching First Interstate Bank customer service. See something wrong? Suggest an update

General information about First Interstate Bank


Parent Company: First Interstate BancSystem, Inc.,
Services : Auto Loan , Credit Card
Industry Groups : Loans & Credit Cards
Service Areas : Wyoming , South Dakota , Montana

General information about First Interstate Bank


Parent Company: First Interstate BancSystem, Inc.,
Services : Auto Loan , Credit Card
Industry Groups : Loans & Credit Cards
Service Areas : Wyoming , South Dakota , Montana

Frequently Asked Questions

Common questions, curated and answered by doxo, about paying First Interstate Bank bills.

How can I pay my First Interstate Bank bill?

You can pay them directly on this website. Or pay on doxo with credit card, debit card, Apple Pay or bank account.

How can I contact First Interstate Bank about my bill?

Questions about your bill should be directed to your biller by phone 855-342-3400.

I'm looking for my bill. Where can I find it?

You can find your bill online at First Interstate Bank.

Can I pay all my First Interstate Bank bills on doxo?

Yes, doxo can process any First Interstate Bank payment, including for Auto Loan and others.

Frequently Asked Questions

Common questions, curated and answered by doxo, about paying First Interstate Bank bills.

How can I pay my First Interstate Bank bill?

You can pay them directly on this website. Or pay on doxo with credit card, debit card, Apple Pay or bank account.

How can I contact First Interstate Bank about my bill?

Questions about your bill should be directed to your biller by phone 855-342-3400.

I'm looking for my bill. Where can I find it?

You can find your bill online at First Interstate Bank.

Can I pay all my First Interstate Bank bills on doxo?

Yes, doxo can process any First Interstate Bank payment, including for Auto Loan and others.